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<div class="moz-cite-prefix">Tobias,<br>
<br>
Odd. By default the variable switchOffIfLessThan_ in a
CbcCutGenerator is zero. This means that you would not get to
9401 as it would fail test -<br>
<br>
if (generator_[i]->switchOffIfLessThan() < 0) {<br>
<br>
at line 9398.<br>
<br>
What value is switchOffIfLessThan_ when assert happens? You do
not reference CbcCutGenerator so how is the generator being added
to CbcModel?<br>
<br>
John Forrest<br>
<br>
On 10/05/16 13:02, Tobias Stengel wrote:<br>
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<p class="MsoNormal">Hi all,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I am trying to define my on cut generator.
My test problem is noswot problem from miplib 3. When I add
the following generator (reduced from my generator) to my
model, the assert „<span
style="font-size:9.5pt;font-family:Consolas;color:#6F008A;background:white;mso-highlight:white">assert</span><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">
(iSwitch >= 0 && iSwitch < 2);</span><span
style="font-size:9.5pt;font-family:Consolas;color:black">“
in CbcModel.cpp, line 9401 fails. If compiled in release
mode (turning asserts off), the correct solution is found.</span><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">
</span><span
style="font-size:9.5pt;font-family:Consolas;color:#2B91AF;background:white;mso-highlight:white">CustomCutGenerator</span><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">::CustomCutGenerator()
: </span><span
style="font-size:9.5pt;font-family:Consolas;color:#2B91AF;background:white;mso-highlight:white">CglCutGenerator</span><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">()
{ }<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">
</span><span
style="font-size:9.5pt;font-family:Consolas;color:#2B91AF;background:white;mso-highlight:white">CustomCutGenerator</span><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">::CustomCutGenerator(</span><span
style="font-size:9.5pt;font-family:Consolas;color:blue;background:white;mso-highlight:white">const</span><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">
</span><span
style="font-size:9.5pt;font-family:Consolas;color:#2B91AF;background:white;mso-highlight:white">CustomCutGenerator</span><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">
&
</span><span
style="font-size:9.5pt;font-family:Consolas;color:gray;background:white;mso-highlight:white">other</span><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">)
{}<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">
</span><span
style="font-size:9.5pt;font-family:Consolas;color:#2B91AF;background:white;mso-highlight:white">CustomCutGenerator</span><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">::~CustomCutGenerator()<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">
{}<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">
std::</span><span
style="font-size:9.5pt;font-family:Consolas;color:#2B91AF;background:white;mso-highlight:white">string</span><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">
</span><span
style="font-size:9.5pt;font-family:Consolas;color:#2B91AF;background:white;mso-highlight:white">CustomCutGenerator</span><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">::generateCpp(</span><span
style="font-size:9.5pt;font-family:Consolas;color:#2B91AF;background:white;mso-highlight:white">FILE</span><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">*
</span><span
style="font-size:9.5pt;font-family:Consolas;color:gray;background:white;mso-highlight:white">file</span><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">)<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">
{<o:p></o:p></span></p>
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style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">
</span><span
style="font-size:9.5pt;font-family:Consolas;color:blue;background:white;mso-highlight:white">return</span><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">
</span><span
style="font-size:9.5pt;font-family:Consolas;color:#A31515;background:white;mso-highlight:white">"customCutGenerator"</span><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">;<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">
}<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">
</span><span
style="font-size:9.5pt;font-family:Consolas;color:blue;background:white;mso-highlight:white">void</span><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">
</span><span
style="font-size:9.5pt;font-family:Consolas;color:#2B91AF;background:white;mso-highlight:white">CustomCutGenerator</span><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">::generateCuts(</span><span
style="font-size:9.5pt;font-family:Consolas;color:blue;background:white;mso-highlight:white">const</span><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">
</span><span
style="font-size:9.5pt;font-family:Consolas;color:#2B91AF;background:white;mso-highlight:white">OsiSolverInterface</span><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">
&</span><span
style="font-size:9.5pt;font-family:Consolas;color:gray;background:white;mso-highlight:white">si</span><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">,
</span><span
style="font-size:9.5pt;font-family:Consolas;color:#2B91AF;background:white;mso-highlight:white">OsiCuts</span><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">
&</span><span
style="font-size:9.5pt;font-family:Consolas;color:gray;background:white;mso-highlight:white">cs</span><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">,
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style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">
</span><span
style="font-size:9.5pt;font-family:Consolas;color:#2B91AF;background:white;mso-highlight:white">CglTreeInfo</span><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">
</span><span
style="font-size:9.5pt;font-family:Consolas;color:gray;background:white;mso-highlight:white">info</span><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">)<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">
{}<o:p></o:p></span></p>
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style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">
</span><span
style="font-size:9.5pt;font-family:Consolas;color:#2B91AF;background:white;mso-highlight:white">CglCutGenerator</span><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">*
</span><span
style="font-size:9.5pt;font-family:Consolas;color:#2B91AF;background:white;mso-highlight:white">CustomCutGenerator</span><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">::clone()
</span><span
style="font-size:9.5pt;font-family:Consolas;color:blue;background:white;mso-highlight:white">const</span><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white"><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">
{<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">
</span><span
style="font-size:9.5pt;font-family:Consolas;color:blue;background:white;mso-highlight:white">return</span><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">
</span><span
style="font-size:9.5pt;font-family:Consolas;color:blue;background:white;mso-highlight:white">new</span><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">
</span><span
style="font-size:9.5pt;font-family:Consolas;color:#2B91AF;background:white;mso-highlight:white">CustomCutGenerator</span><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">();<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">
}<o:p></o:p></span></p>
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style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">
</span><span
style="font-size:9.5pt;font-family:Consolas;color:#2B91AF;background:white;mso-highlight:white">CustomCutGenerator</span><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">
&
</span><span
style="font-size:9.5pt;font-family:Consolas;color:#2B91AF;background:white;mso-highlight:white">CustomCutGenerator</span><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">::operator=(</span><span
style="font-size:9.5pt;font-family:Consolas;color:blue;background:white;mso-highlight:white">const</span><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">
</span><span
style="font-size:9.5pt;font-family:Consolas;color:#2B91AF;background:white;mso-highlight:white">CustomCutGenerator</span><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">&
</span><span
style="font-size:9.5pt;font-family:Consolas;color:gray;background:white;mso-highlight:white">rhs</span><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">)
{<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">
</span><span
style="font-size:9.5pt;font-family:Consolas;color:blue;background:white;mso-highlight:white">return</span><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">
*</span><span
style="font-size:9.5pt;font-family:Consolas;color:blue;background:white;mso-highlight:white">this</span><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">;<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">
}<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">CustomCutGenerator
implements
</span><span
style="font-size:9.5pt;font-family:Consolas;color:#2B91AF;background:white;mso-highlight:white">CglCutGenerator.
Any help why this happens and/or how to fix it would be
welcomed. Especially since the user guide chapter on cuts is
empty. Feel free to ask for more information.<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:9.5pt;font-family:Consolas;color:#2B91AF;background:white;mso-highlight:white"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:9.5pt;font-family:Consolas;color:#2B91AF;background:white;mso-highlight:white">I
am using Cbc 2.9.8 and Microsoft visual C++ 2013.<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:9.5pt;font-family:Consolas;color:#2B91AF;background:white;mso-highlight:white"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:9.5pt;font-family:Consolas;color:#2B91AF;background:white;mso-highlight:white"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:9.5pt;font-family:Consolas;color:#2B91AF;background:white;mso-highlight:white">Thanks<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:9.5pt;font-family:Consolas;color:#2B91AF;background:white;mso-highlight:white">Tobias<o:p></o:p></span></p>
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